(Lindsay Lohan's July 24 Mugshot)

Early Tuesday morning in Santa Monica, California, Lindsay Lohan was arrested for suspicion of drunken driving after a short car chase. Lindsay's attorney said that she had "relapsed" and that she was receiving "medical care." Lindsay, who turned 21 on July 2, was search at the station and police found a "small" amount of cocaine in her pocket. She was booked for DUI, possession of cocaine, driving on a suspended license and transporting a narcotic into a custody facility. At the time of her arrest she was wearing her alcohol-detection ankle bracelet. The legal blood-alcohol level in California is .08. Lindsay's blood alcohol level was .12 percent and .13 percent as determined by two breathalyzer tests. She may also face an additional charge of driving under the influence of a controlled substance if concaine is found in her system. They will determine this through a urine test that she took while she was at the station. Lohan posted $25,000 bail and was released from jail at about 6:30 a.m. If charged and convicted of both DUI-related incidents, she will face a minimum four-day jail sentence. She has still not been formally charged by prosecutors from her arrest in May.